<script
  setup
  lang='ts'
>

import XtxSwiper from "@/components/XtxSwiper.vue";
import {computed, ref} from "vue";
import {BannerItem} from "@/types/home.d.ts";
import {getHomeBannerAPI} from "@/services/home";
import {onLoad} from "@dcloudio/uni-app";
import {getCategoryTopAPI} from "@/services/category.d.ts";
import {CategoryTopItem} from "@/types/category.d.ts";
import CategorySkeleton from "@/pages/category/CategorySkeleton.vue";

const bannerList = ref<BannerItem[]>([])

const activeIndex = ref(0)

const getBannerList = async () => {
  let res = await getHomeBannerAPI(2);
  bannerList.value = res.result
}

const categoryList = ref<CategoryTopItem[]>([])

const getCategoryTop = async () => {
  let res = await getCategoryTopAPI();
  categoryList.value = res.result
}

// 提取当前二级分类数据
const subCategoryList = computed(() => {
  return categoryList.value[activeIndex.value]?.children || []
})

const isLoading = ref(false)

onLoad(() => {
  isLoading.value = true
  Promise.all([
    // 获取轮播图数据
    getBannerList(),
    // 同时获取一级分类和二级分类数据
    getCategoryTop()])
  isLoading.value = false
})

</script>

<template>
  <view class='viewport'>
    <!-- 搜索框 -->
    <view class='search'>
      <view class='input'>
        <text class='icon-search'>女靴</text>
      </view>
    </view>
    <!-- 分类 -->
    <CategorySkeleton v-if='isLoading' />
    <template v-else>
      <view class='categories'>
        <!-- 左侧：一级分类 -->
        <scroll-view
          class='primary'
          scroll-y
        >
          <view
            class='item'
            v-for='(item, index) in categoryList'
            :key='item.id'
            :class='{ active: index === activeIndex }'
            @tap='activeIndex = index'
          >
            {{ item.name }}
          </view>
        </scroll-view>
        <!-- 右侧：二级分类 -->
        <scroll-view
          class='secondary'
          scroll-y
        >
          <!-- 焦点图/轮播图 -->
          <XtxSwiper
            class='banner'
            :list='bannerList'
          />
          <!-- 内容区域 -->
          <view
            class='panel'
            v-for='item in subCategoryList'
            :key='item.id'
          >
            <view class='title'>
              <text class='name'>{{ item.name }}</text>
              <navigator
                class='more'
                hover-class='none'
              >全部
              </navigator>
            </view>
            <view class='section'>
              <navigator
                v-for='goods in item.goods'
                :key='goods.id'
                class='goods'
                hover-class='none'
                :url='`/pages/goods/goods?id=${goods.id}`'
              >
                <image
                  class='image'
                  :src='goods.picture'
                ></image>
                <view class='name ellipsis'>{{ goods.name }}</view>
                <view class='price'>
                  <text class='symbol'>¥</text>
                  <text class='number'>{{ goods.price }}</text>
                </view>
              </navigator>
            </view>
          </view>
        </scroll-view>
      </view>
    </template>
  </view>
</template>

<style lang='scss'>
page {
  height: 100%;
  overflow: hidden;
}

.viewport {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.search {
  padding: 0 30rpx 20rpx;
  background-color: #fff;
  
  .input {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64rpx;
    padding-left: 26rpx;
    color: #8b8b8b;
    font-size: 28rpx;
    border-radius: 32rpx;
    background-color: #f3f4f4;
  }
}

.icon-search {
  &::before {
    margin-right: 10rpx;
  }
}

/* 分类 */
.categories {
  flex: 1;
  min-height: 400rpx;
  display: flex;
}

/* 一级分类 */
.primary {
  overflow: hidden;
  width: 180rpx;
  flex: none;
  background-color: #f6f6f6;
  
  .item {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 96rpx;
    font-size: 26rpx;
    color: #595c63;
    position: relative;
    
    &::after {
      content: '';
      position: absolute;
      left: 42rpx;
      bottom: 0;
      width: 96rpx;
      border-top: 1rpx solid #e3e4e7;
    }
  }
  
  .active {
    background-color: #fff;
    
    &::before {
      content: '';
      position: absolute;
      left: 0;
      top: 0;
      width: 8rpx;
      height: 100%;
      background-color: #27ba9b;
    }
  }
}

.primary .item:last-child::after,
.primary .active::after {
  display: none;
}

/* 二级分类 */
.secondary {
  background-color: #fff;
  
  .carousel {
    height: 200rpx;
    margin: 0 30rpx 20rpx;
    border-radius: 4rpx;
    overflow: hidden;
  }
  
  .panel {
    margin: 0 30rpx 0rpx;
  }
  
  .title {
    height: 60rpx;
    line-height: 60rpx;
    color: #333;
    font-size: 28rpx;
    border-bottom: 1rpx solid #f7f7f8;
    
    .more {
      float: right;
      padding-left: 20rpx;
      font-size: 24rpx;
      color: #999;
    }
  }
  
  .more {
    &::after {
      font-family: 'erabbit' !important;
      content: '\e6c2';
    }
  }
  
  .section {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    padding: 20rpx 0;
    
    .goods {
      width: 150rpx;
      margin: 0rpx 30rpx 20rpx 0;
      
      &:nth-child(3n) {
        margin-right: 0;
      }
      
      image {
        width: 150rpx;
        height: 150rpx;
      }
      
      .name {
        padding: 5rpx;
        font-size: 22rpx;
        color: #333;
      }
      
      .price {
        padding: 5rpx;
        font-size: 18rpx;
        color: #cf4444;
      }
      
      .number {
        font-size: 24rpx;
        margin-left: 2rpx;
      }
    }
  }
}
</style>
